{\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi} \begin{tabular}         {@{\extracolsep{4pt}}l*{10}{>{\centering\arraybackslash}m{2.2cm}}@{}}          \toprule                 \multicolumn{1}{l}{}     &\multicolumn{4}{c}{\textbf{Hourly Production}}  \bigstrut    \\     \cline{2-5} \addlinespace             &\multicolumn{2}{c}{Number of prior rounds} &\multicolumn{2}{c}{Any prior round in worksite}  \\          &\multicolumn{2}{c}{(continuous)} &\multicolumn{2}{c}{(binary)}  \\          \cline{2-3} \cline{4-5} \addlinespace   
                    &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         \\
\midrule
Cash $\times$ Post-pay&       0.081         &                     &       0.089         &                     \\
                    &     (0.074)         &                     &     (0.064)         &                     \\
\addlinespace
Cash $\times$ Post-pay $\times$ Prior rounds in worksite&       0.011         &       0.014         &       0.026         &       0.003         \\
                    &     (0.024)         &     (0.024)         &     (0.077)         &     (0.074)         \\
\midrule
Interactions with number of total rounds in worksite&           Y         &           N         &           Y         &           N         \\
Interactions with worksite ID fixed effects&           N         &           Y         &           N         &           Y         \\
N: worker-hours     &      17,441         &      17,441         &      17,441         &      17,441         \\
\bottomrule
\end{tabular}
}
